Machine for making metallic laths



O H CARTER Machine for Making Metallic Laths.

Patented April 27,1880.

INVENTGB WITNESSES ERS. PHoTb-urnoGmPuEn, WAsHING ON. D. c.

UNITED STATES PATENT OFFICE.

CHARLES H. CARTER, OF SAN FRANCISCO, CALIFORNIA.

MACHINE FOR MAKING METALLIC LATHS.

SPECIFICATION forming part of Letters Patent No. 226,901, dated April 2'7, 1880.

I Application filed September 6, 1879.

To all whom it may concern Be it known that I, GHARLEs H. CARTER, of the city and county of San Francisco, and State of California, have invented Improvements in Machines for Manufacturing Metallic Laths; and I hereby declare the following to be afull, clear, and exact description thereof.

My invention relates to certain improvements in machines for the manufacture of metallic laths; and it consists in a series of rockin g bending jaws operated by proper mechanism, in combination with a mandrel, as hereinafter more fully set forth and claimed.

In the accompanying drawings, Figure l is a view of my machine, and Fig. 2 is a transverse section.

LetArepresent slotted standards which are placed at opposite ends of the base-plate B. On this base-plate, extending longitudinally along its center, is the mandrel or former C, having rounded edges, as shown, and on which the lath is formed. as hereinafter described.

On the insidepf each standard is a sliding plate, D, which is held in position by the guide E moving in the slots in the standards. Journaled to the lower corners of this sliding plate D are the arms or levers a, the lower ends of which are hinged or pivoted to the lugs or arms 11 secured on the swinging presser-plates F. These presser-plates have on their lower edges, at the ends and middle, lugs 0, through which passes a rod, G, so that both plates are hinged or journaled on this rod.

A shaft, H, passes through the upper ends of the standards, and has justinside said standards the eccentrics I attached to it, these eccentrics moving in the suitably-formed slots in the upper ends of the sliding plates D, so as to give said plates a vertical reciprocating motion as the shaft is rotated. A pulley, d, is placed on the end of the shaft, by means of which the shaft is rotated.

The operation of my machine is as follows: A sheet of metal of suitable dimensions is laid upon the mandrel or former C. The eccentrics, as the shaft is rotated, force the sliding plates D down, thus forcing down the oppositelyplaced arms or levers a. These arms or levers force down the upper edges of the swing ing presser-plates, the lower beveled or sharpened edges, f, of which squeeze the overlapping edges of the metal plates from which the laths are formed down over the rounded edges of the former and into the crevice g on each side, thus forming the lath. The eccentrics again raise the swinging plates and separate their lower edges, releasing the lath, which may be drawn out through the opening f at the end of the machine, after which a new piece of metal may be inserted and pressed.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-- The combination of the shaft H, eccentrics I, sliding plates D, arms a, lin'esser-plates I arms or lugs b c, shaft G, and former C, substantially as shown and described.

In witness whereof I have hereunto set my hand.

CHARLES H. CARTER.

Witnesses:

FRANK A. BRooKs, S. H. N OURSE. 

